The 7 Mile Beach on Grand Cayman is fabulous. Relaxing in the lounge chair on the beach was wonderful and I didn't want to get back on the ship. The beach is very clean.
At 8am, we drove past the beach area and noted that there were people raking seaweed and overall doing a great job of maintaining the beach, which looked wonderful when we returned at 10am to relax. The long stretch of white sand is comfortable for strolling several miles, but there are a few places you need to watch for small to mid-size pebbles.
The public area was very crowded (probably because several of the cruise ship excursions were cancelled), but not so overcrowded that you couldn't unwind and forget about your troubles. There were several areas along our mile-long stroll, where there were few to no people.
The water is crystal clear and a beautiful turquoise color similar to what one would find in St. John or Turks and Caicos. My father went snorkelling, but didn't see any fish, although closer to the other end of the beach is supposed to have good snorkelling and there were a few tours that left right from the public beach area.
I can't wait to return to the Cayman Islands in 2005 when I will get to spend a week, rather than just a portion of a day on the wonderful island.